The TYC 20-9142-80-9 Headlight Assembly is a high-quality replacement part designed specifically for the 2016-2017 GMC Terrain. This assembly includes both low and high beam halogen bulbs, ensuring optimal illumination for night driving and adverse weather conditions. The housing is constructed from durable plastic, and the lens is made of clear plastic to provide clear visibility. The assembly is DOT/SAE compliant, meeting or exceeding FMVSS 108 standards for photometry and safety compliance. It features OE-comparable fasteners and mounting tabs for precise fitment and hassle-free installation. Rigorous cycling tests ensure quality and durability, and the lens has a special coating to prevent hazing and fading, ensuring proper illumination and safety. The assembly is backed by a limited lifetime warranty against defects in materials and workmanship.